Performed maintenance on water furnace series 5 geothermal system Put Condensate treatment in the air coil drain pan. Poured water in the pan to verify proper drainage. Inspected wiring: no loose or overheated connections Amp draw for compressor, blower, ground loop pumps, and hot water generator pump all within specification. Tested heat of extraction and rejection for ground loop: measurements fall within the manufacturer's performance charts. Changed air filter Air coil and blower are clean